Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
Cometic's .040 inch MLS head gasket for Chevrolet 348/409 W-Series Big Block V8 (4.200 in bore) features embossed outer stainless steel layers coated with Viton for resistance to heat and sealing challenges. The multi-layer steel construction offers rebound and corrosion resistance, sealing aluminum-to-iron interfaces without sealants. The center shim layer accommodates thickness changes to improve load distribution and reduce bore distortion.
Cometic Chevrolet 348/409 W-Series Big Block V8 .040in MLS Cylinder Head Gasket - 4.200in Bore
